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Texas Instruments ADS1014LIDGSR
- Part No.:
- ADS1014LIDGSR
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADS1014LIDGSR.pdf
- Description:
- 12-BIT, 3.3-KSPS ONE-CHANNEL DEL
- Quantity:
- Payment:
- Shipping:
Inventory:2,447
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Product details
Overview
ADS1014LIDGSR from Texas Instruments is a 12-bit, delta-sigma analog-to-digital converter (ADC) with integrated PGA, digital comparator, internal voltage reference, and oscillator. It supports 1 differential or 1 single-ended input, operates from 2.0 V to 3.6 V, achieves up to 3.3 kSPS, and features 1.8-V I²C bus compatibility - enabling precision sensor monitoring in space-constrained industrial and wearable systems.
For engineers reviewing the ADS1014LIDGSR datasheet, ADS1014LIDGSR pinout, ADS1014LIDGSR application, or ADS1014LIDGSR equivalent, key selection considerations include its ultra-small 10-pin VSSOP package, programmable full-scale ranges (±0.256 V to ±6.144 V), 150 µA continuous-conversion current, –40°C to +125°C operating range, and open-drain ALERT/RDY functionality for over/under-voltage detection.
Technical Context
The ADS1014LIDGSR implements a delta-sigma ADC core with a 250-kHz modulator frequency derived from an internal 1-MHz oscillator. Its single-input architecture lacks a multiplexer - unlike the ADS1015L - and requires external grounding of AIN1 for single-ended operation. The PGA provides six selectable gain settings, directly determining full-scale input ranges without external reference dependency.
Conversion modes include single-shot (for low-power periodic sampling) and continuous-conversion (with data rates from 128 SPS to 3.3 kSPS). The digital comparator operates in traditional or window mode, latching alerts via SMBus response or register read, and the ALERT/RDY pin can alternatively signal conversion completion with an ~8-µs pulse.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit noise-free resolution - guarantees monotonic output with no missing codes across full temperature range. |
| Max Sample Rate | 3.3 kSPS - enables real-time monitoring of fast-changing analog signals such as current transients or thermal events. |
| Supply Voltage | 2.0 V to 3.6 V - supports direct interface with modern low-voltage microcontrollers and battery-powered systems. |
| Quiescent Current | 150 µA in continuous-conversion mode - reduces system power budget in always-on sensing applications. |
| I²C Interface | 1.8-V logic-compatible, four pin-selectable addresses - eliminates level-shifting circuitry and simplifies multi-device bus design. |
| Operating Temp | –40°C to +125°C - qualified for under-hood automotive, industrial motor control, and harsh-environment deployments. |
| Input Range | Programmable PGA yields ±0.256 V to ±6.144 V FSR - allows accurate measurement of both millivolt-level thermistor outputs and volt-level supply rails. |
Pinout & Package
ADS1014LIDGSR is packaged in a 10-pin VSSOP (DGS) measuring 3.00 mm × 4.9 mm, optimized for compact PCB layouts and automated assembly. Pin functions are validated per TI SBASAV7 (January 2024) datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ADDR | Digital input | Selects one of four I²C slave addresses (0x48–0x4B); pulled high/low or left floating to configure device address on shared bus. |
| ALERT/RDY | Digital output (open-drain) | Signals comparator alert or conversion completion; requires external pullup to VDD for proper logic-level operation. |
| GND | Analog ground | Primary return path for analog inputs and reference; must be connected to clean system ground plane to minimize noise coupling. |
| AIN0 | Analog input (+) | Differential positive input or single-ended input; accepts voltages from GND to VDD (within absolute max limits). |
| AIN1 | Analog input (–) | Differential negative input; for single-ended use, must be externally tied to GND per datasheet guidance. |
| SCL | I²C clock input | Accepts 1.8-V–compatible logic; requires pullup to VDD for standard/fast-mode timing compliance (100/400 kHz). |
| SDA | I²C bidirectional data | Open-drain I/O; shares bus with other devices; pullup required for signal integrity and ACK/NACK handshaking. |
| VDD | Analog power supply | Supplies core ADC, PGA, reference, and I²C interface; requires 0.1-μF decoupling capacitor placed near pin. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated PGA | 6 gain settings (1–16×) enable precise scaling of mV- to V-range signals without external op-amps or resistors. |
| Digital comparator | Configurable as latching/non-latching, window/traditional mode - replaces external comparators and reduces BOM count. |
| Internal voltage reference | Low-drift, factory-trimmed reference eliminates need for external precision reference ICs or trimming components. |
| Single-cycle settling | Conversion time = 1 / data rate - ensures deterministic latency (e.g., 303 µs at 3.3 kSPS), critical for closed-loop control. |
| Ultra-low power | 150 µA active current and 1.2 µA power-down mode - extends battery life in portable health monitors and IoT nodes. |
Applications
| Power Supply Monitoring | Current Sensing |
|---|---|
|
Use Scenario: Real-time tracking of 3.3-V or 5-V rail voltage in embedded controllers or FPGA power domains. IC Role / Device Role / Timing Role: ADC measures differential voltage across sense resistor or single-ended rail-to-ground, with PGA set to ±2.048 V or ±4.096 V range. Use Value: Detects undervoltage/overvoltage faults within ±0.5 LSB offset error and triggers ALERT/RDY interrupt without MCU polling. |
Use Scenario: Bidirectional current measurement in motor drivers or USB-C PD chargers using shunt resistors. IC Role / Device Role / Timing Role: Configured for differential input across shunt; PGA gain selected to resolve µV-level drops (e.g., 50 mΩ @ 1 A = 50 mV → ±64 mV FSR). Use Value: Achieves 62.5 µV LSB resolution at ±2.048 V range, enabling <10 mA current resolution with minimal external components. |
| Temperature Sensing | Wearable Biometric Monitoring |
|
Use Scenario: High-accuracy thermistor-based temperature acquisition in HVAC sensors or industrial PLC modules. IC Role / Device Role / Timing Role: Single-ended interface to thermistor voltage divider; PGA gain adjusted for optimal dynamic range across –40°C to +125°C span. Use Value: Internal 12-bit resolution and 0.005 LSB/°C offset drift ensure <0.1°C repeatability without calibration tables or external compensation. |
Use Scenario: Miniaturized heart-rate or skin-conductance sensing in fitness bands and medical patches. IC Role / Device Role / Timing Role: Low-power continuous-conversion mode (128–250 SPS) with ALERT/RDY used for motion-triggered wake-up or anomaly detection. Use Value: 150 µA active current and 1.47 mm × 1.03 mm DSBGA option (ADS1014LYCJR) enable sub-10-mm² wearable form factors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-bit I²C ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS1014IRUGR | Same electrical specs and pinout, but in 12-pin DSBGA (YCJ) package (1.47 mm × 1.03 mm) vs. VSSOP (3.00 mm × 4.9 mm). | Better suited for ultra-dense PCBs and automated reflow processes requiring chip-scale packaging. | Select ADS1014IRUGR when board area is constrained and DSBGA assembly capability exists. |
| MCP3221-E/SN | 12-bit SAR ADC (not delta-sigma); no PGA, no comparator, 188 kSPS max, 2.7–5.5 V supply, only two I²C addresses. | Lacks integrated signal conditioning - requires external op-amp for small signals and discrete comparator for thresholding. | Choose MCP3221-E/SN only if higher speed and simpler architecture outweigh loss of PGA/comparator integration. |
Compared with ADS1014LIDGSR, ADS1014IRUGR offers identical functionality in a smaller footprint but demands tighter layout controls, while MCP3221-E/SN trades integrated features for raw speed and wider supply range - making ADS1014LIDGSR optimal for precision, low-power, feature-rich sensing where size and component count matter.
Availability
ADS1014LIDGSR is available at Aetrix Electronics and suitable for power supply monitoring, current sensing, and temperature measurement applications requiring stable component supply, long-term manufacturability, and automotive-grade temperature resilience.
Supply support for ADS1014LIDGSR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in precision data converters and low-power system solutions.
The ADS101xL product line was designed specifically for space- and power-constrained sensor signal chains in industrial, automotive, and personal electronics - integrating PGA, comparator, reference, and oscillator to eliminate discrete support components.
FAQ
What is the maximum input voltage range supported by ADS1014LIDGSR?
The ADS1014LIDGSR supports programmable full-scale ranges from ±0.256 V to ±6.144 V via its integrated PGA. Input voltages must remain within GND – 0.3 V to VDD + 0.3 V per absolute maximum ratings. At VDD = 3.3 V, the ±4.096 V and ±6.144 V ranges are usable but cannot produce full-code output beyond ±3.3 V differential input.
Does ADS1014LIDGSR require an external voltage reference?
No, ADS1014LIDGSR includes a factory-trimmed internal low-drift voltage reference. External references are not supported or necessary. All gain and full-scale range specifications - including ±2.048 V and ±6.144 V - are defined relative to this internal reference, eliminating calibration overhead and external component cost.
Can ADS1014LIDGSR operate with a 1.8-V I²C bus while powered from 3.3 V?
Yes, ADS1014LIDGSR's I²C interface is explicitly designed for 1.8-V logic compatibility regardless of VDD (2.0–3.6 V). SCL and SDA pins accept 1.8-V high-level signals and drive open-drain outputs compatible with 1.8-V pullups - enabling direct connection to low-voltage microcontrollers without level shifters.
How does the ALERT/RDY pin function in ADS1014LIDGSR?
In ADS1014LIDGSR, the ALERT/RDY pin serves dual roles: it asserts (open-drain low) upon comparator threshold violation or signals conversion completion in continuous mode (~8-µs pulse). Configuration is controlled via COMP_MODE, COMP_LAT, and COMP_POL bits in the Configuration register - allowing flexible interrupt or ready-signal usage without additional GPIO resources.
What is the minimum supply current for ADS1014LIDGSR in power-down mode?
The ADS1014LIDGSR draws only 1.2 µA typical (5 µA maximum) in power-down mode, as specified in Section 6.5 of the SBASAV7 datasheet. This ultra-low quiescent current makes it ideal for battery-operated systems requiring extended sleep intervals between sensor readings, such as environmental data loggers or smart thermostats.
ADS1014LIDGSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 3.3k
- Number of Inputs:
- 1, 2
- Input Type:
- Differential, Single Ended
- Data Interface:
- I2C
- Configuration:
- PGA-ADC
- Ratio - S/H:ADC:
- 0:1
- Number of A/D Converters:
- 1
- Architecture:
- Sigma-Delta
- Reference Type:
- Internal
- Voltage - Supply, Analog:
- 2V ~ 3.6V
- Voltage - Supply, Digital:
- 2V ~ 3.6V
- Features:
- Oscillator, PGA, Selectable Address
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 10-VSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS1014LIDGSR FAQ
1.How can I place an order for ADS1014LIDGSR through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS1014LIDGSR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADS1014LIDGSR reliable?
The price and inventory of ADS1014LIDGSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS1014LIDGSR is usually 5 days.
3.What payment methods are accepted for ADS1014LIDGSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS1014LIDGSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS1014LIDGSR?
ADS1014LIDGSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS1014LIDGSR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADS1014LIDGSR?
For technical support, including ADS1014LIDGSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS1014LIDGSR requirements.
6.How does Aetrix verify that ADS1014LIDGSR is sourced from the original manufacturer or authorized distributors?
All ADS1014LIDGSR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADS1014LIDGSR meets industry standards.
7.What is the process for return or replacement of ADS1014LIDGSR?
All ADS1014LIDGSR units undergo pre-shipment inspection (PSI). If there is an issue with ADS1014LIDGSR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADS1014LIDGSR part is unused and in its original packaging.
Return procedure for ADS1014LIDGSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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